Bike USA

sci-fact:


A human on a bicycle is the most efficient form of locomotion known to man, using significantly less energy for their mass than an unaided human, as well as birds, horses, dogs, fish, rabbits, mice, insects, helicopters, jets, propeller planes and automobiles.

sci-fact:

A human on a bicycle is the most efficient form of locomotion known to man, using significantly less energy for their mass than an unaided human, as well as birds, horses, dogs, fish, rabbits, mice, insects, helicopters, jets, propeller planes and automobiles.
  1. memeengine reblogged this from dagothar and added:
    The bicycle is also not too bad for versatility, going places cars can’t (though, it’s no match for our super-versatile...
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